EP2574103A4 - Method and apparatus for key updating - Google Patents

Method and apparatus for key updating

Info

Publication number
EP2574103A4
EP2574103A4 EP11791916.7A EP11791916A EP2574103A4 EP 2574103 A4 EP2574103 A4 EP 2574103A4 EP 11791916 A EP11791916 A EP 11791916A EP 2574103 A4 EP2574103 A4 EP 2574103A4
Authority
EP
European Patent Office
Prior art keywords
mobile device
key
uplink
avoided
random access
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11791916.7A
Other languages
German (de)
French (fr)
Other versions
EP2574103A1 (en
Inventor
Li Chai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP2574103A1 publication Critical patent/EP2574103A1/en
Publication of EP2574103A4 publication Critical patent/EP2574103A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0827—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving distinctive intermediate devices or communication paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method for refreshing a key is provided by the present invention, wherein when a counter in a Packet Data Convergence Protocol PDCP layer of a Radio Bearer RB reaches a threshold, a mobile device receives a cell handover message, re-establishes PDCP layers and Radio Link Control RLC layers for all RBs, keeps Uplink Time Alignment Information, uplink grant resources for uplink shared channel and Physical Uplink Control Channel resources allocated semi-statically, and flushes a buffer of a Medium Access Control MAC layer; the mobile device obtains a new root key, and obtains a new encryption and integrity protection key of a radio resource control plane according to the new root key; the mobile device transmits a cell handover complete message protected by the new encryption and integrity protection key. Thereby, a random access process initiated by the mobile device is avoided and interruption delay caused by the random access initiated by the mobile device is thus avoided. A mobile device and a network node are also provided by the present invention.
EP11791916.7A 2010-06-10 2011-06-03 Method and apparatus for key updating Withdrawn EP2574103A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102015751A CN102281535A (en) 2010-06-10 2010-06-10 Key updating method and apparatus thereof
PCT/CN2011/075266 WO2011153925A1 (en) 2010-06-10 2011-06-03 Method and apparatus for key updating

Publications (2)

Publication Number Publication Date
EP2574103A1 EP2574103A1 (en) 2013-03-27
EP2574103A4 true EP2574103A4 (en) 2013-07-31

Family

ID=45097534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11791916.7A Withdrawn EP2574103A4 (en) 2010-06-10 2011-06-03 Method and apparatus for key updating

Country Status (5)

Country Link
US (1) US20130114813A1 (en)
EP (1) EP2574103A4 (en)
CN (1) CN102281535A (en)
BR (1) BR112012031322A2 (en)
WO (1) WO2011153925A1 (en)

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KR102219983B1 (en) * 2013-04-02 2021-02-25 엘지전자 주식회사 Method for performing a cell change procedure in a wireless communication system and a device therefor
US10164693B2 (en) 2013-05-09 2018-12-25 Intel IP Corporation Reduction of buffer overflow
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US20150163223A1 (en) * 2013-12-09 2015-06-11 International Business Machines Corporation Managing Resources In A Distributed Computing Environment
US9538575B2 (en) * 2014-01-30 2017-01-03 Sharp Kabushiki Kaisha Systems and methods for dual-connectivity operation
CN104936174B (en) * 2014-03-21 2019-04-19 上海诺基亚贝尔股份有限公司 The method of more new key under the dual link situation based on user plane 1A framework
DE102014209042A1 (en) * 2014-05-13 2015-11-19 Robert Bosch Gmbh Method and device for generating a secret key
US9544767B2 (en) 2014-07-21 2017-01-10 Imagination Technologies Limited Encryption key updates in wireless communication systems
CN105591738B (en) * 2015-12-22 2018-12-25 新华三技术有限公司 A kind of key updating method and device
CN105681032B (en) * 2016-01-08 2017-09-12 腾讯科技（深圳）有限公司 Method for storing cipher key, key management method and device
CN107690197B (en) * 2016-08-05 2020-02-28 电信科学技术研究院 Transmission node replacement method and related equipment
CN112672343B (en) 2016-08-09 2022-04-26 三星电子株式会社 Method and apparatus for managing user plane operation in wireless communication system
ES2940908T3 (en) * 2016-09-30 2023-05-12 Nokia Technologies Oy Security key update
US11553382B2 (en) * 2017-01-27 2023-01-10 Telefonaktiebolaget Lm Ericsson (Publ) Key change procedure
CN112738858B (en) 2017-03-24 2022-05-31 华为技术有限公司 Method and device for switching
CN108810889B (en) * 2017-05-05 2020-12-04 华为技术有限公司 Communication method, device and system
WO2018214052A1 (en) 2017-05-24 2018-11-29 Qualcomm Incorporated Uplink small data transmission in inactive state
CN108964835A (en) * 2017-05-26 2018-12-07 展讯通信（上海）有限公司 Data transfer control method, device and user equipment
WO2018227480A1 (en) * 2017-06-15 2018-12-20 Qualcomm Incorporated Refreshing security keys in 5g wireless systems
KR20230147749A (en) * 2017-06-23 2023-10-23 모토로라 모빌리티 엘엘씨 Method and apparatus for implementing bearer specific changes as part of a connection reconfiguration that impacts the security keys being used
US10880737B2 (en) 2017-06-23 2020-12-29 Motorola Mobility Llc Method and apparatus for refreshing the security keys of a subset of configured radio bearers
US11252561B2 (en) * 2017-06-26 2022-02-15 Telefonaktiebolaget Lm Ericsson (Publ) Refreshing a security context for a mobile device
US11071021B2 (en) * 2017-07-28 2021-07-20 Qualcomm Incorporated Security key derivation for handover
CN109413005A (en) * 2017-08-17 2019-03-01 中兴通讯股份有限公司 Data stream transmitting method of controlling security and device
WO2019195563A1 (en) * 2018-04-04 2019-10-10 Convida Wireless, Llc Random access with new radio unlicensed cells
CN112602367A (en) 2018-06-28 2021-04-02 株式会社Ntt都科摩 User terminal
CN112602368B (en) 2018-06-28 2024-08-20 株式会社Ntt都科摩 User terminal
CN112534849B (en) * 2018-08-09 2023-08-01 中兴通讯股份有限公司 Security key generation techniques
CN110913438B (en) * 2018-09-15 2021-09-21 华为技术有限公司 Wireless communication method and device
WO2020103063A1 (en) * 2018-11-22 2020-05-28 深圳市欢太科技有限公司 Rrc connection releasing method and apparatus, and mobile terminal
US11963057B2 (en) * 2018-12-31 2024-04-16 Telefonaktiebolaget Lm Ericsson (Publ) Handover of unacknowledged mode bearer in a wireless communication system
EP4114124A1 (en) 2019-01-04 2023-01-04 Beijing Xiaomi Mobile Software Co., Ltd. Two-step random access procedure in unlicensed bands
US10986497B2 (en) 2019-01-18 2021-04-20 Lenovo (Singapore) Pte. Ltd. Key refresh for small-data traffic
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Also Published As

Publication number Publication date
WO2011153925A1 (en) 2011-12-15
EP2574103A1 (en) 2013-03-27
CN102281535A (en) 2011-12-14
US20130114813A1 (en) 2013-05-09
BR112012031322A2 (en) 2016-10-25

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